com.helger.commons.gfx

Class ImageDataManager

java.lang.Object

com.helger.commons.gfx.ImageDataManager

@ThreadSafe
public final class ImageDataManager
extends Object

This service class is used to cache information about images. It is used to set the HTML attributes width and height for images. It has an internal cache to avoid querying the data every time.

Author:

Philip Helger

Method Summary

Methods

Modifier and Type	Method and Description
static EChange	clearCache() Remove all cached elements
static EChange	clearCachedSize(IReadableResource aRes) Remove a single resource from the cache.
static Map<IReadableResource,ScalableSize>	getAllCachedSizes()
static Set<IReadableResource>	getAllNotExistingResources()
static ScalableSize	getImageSize(IReadableResource aRes)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getImageSize

@Nullable
public static ScalableSize getImageSize(@Nullable
                                 IReadableResource aRes)

clearCachedSize

@Nonnull
public static EChange clearCachedSize(@Nullable
                              IReadableResource aRes)

Remove a single resource from the cache.

Parameters:

aRes - The resource to be removed. May be null.

Returns:

Never null.

clearCache

@Nonnull
public static EChange clearCache()

Remove all cached elements

Returns:

EChange - never null

getAllCachedSizes

@Nonnull
@ReturnsMutableCopy
public static Map<IReadableResource,ScalableSize> getAllCachedSizes()

getAllNotExistingResources

@Nonnull
@ReturnsMutableCopy
public static Set<IReadableResource> getAllNotExistingResources()